Hand-threading shuttle.



D. BROWN 6: H. L. BONNEY. HAND THREADING SHUTTLE.

APPLICATION TILED 001.229.1910.

1,000,372. v Patented Aug. 15,1911..

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DAVID BROWN AND HENRY L. BONNEY, OF LAWRENCE, MASSACHUSETTS.

HAND-THREADING SHUTTLE.

To all whom it may concern.

Be it known that we, DAVID BROWN and HENRY L. BONNEY, residing at Lawrence, in the county of Essex and State of Massachusetts, have invented an Improvement in Hand-Threading Shuttles, of which the following is a specification.

This invention relates to certain improvements in self-threading or hand-threading loom shuttles, in which the shuttle is threaded by drawing the thread through a slot in the shuttle body into a slotted eye.

One of the objections to prior devices of this character, which has been given the test of practical use, has been that they tend to cause undue breakage of the filling, that is, to cause more breakage than would occur in a shuttle having an ordinary tubular eye extending from the middle to the side.

The chief objection to devices of this character is the liability to become unthreaded, so that the principal result to be desired in devices of this character, is to provide a shuttle which may not only be readily threaded, but which will not become unthreaded.

Devices of this character usually comprise a slotted eye which is so constructed that it is not practical to make the eye of -porcelain, and, as it is considered necessary to use shuttles having porcelain eyes in weaving certain kinds of woolen goods, selfthreading shuttles have not been generally used in such instances on this account.

The objects of our invention are to provide a shuttle of the above described character which shall be so constructed that the liability of breaking the filling is no greater than with the ordinary type of shuttle which is threaded by suction, and further to provide a form of slotted eye, and a construction of shuttle body used in connection therewith, which enables the eye to be made of porcelain.

Further objects are to produce a device of this character which may be readily threaded and will not become unthreaded in ordinary use, and to simplify the con struction so as materially to decrease the cost of manufacture of these devices.

We accomplish these objects by the means shown in the accompanying drawing, in which,

Figural is a plan view of the head end Specification of Letters Patent.

Application filed October 29, 1910.

Patented Aug. 15, 1911.

Serial No. 589,717.

of a shuttle provided with our invention. Fig. 2 isa side elevation thereof. Figs. 3 and 4 are horizontal sections on the lines 33 and 4% respectively, of Fig. 2. Fig. 5 is a central, vertical, longitudinal section on the line 55 of Fig. 1. Figs. 6 and 7 are cross sections on the line 78 of Fig. 1, Fig. 6 being taken as looking toward the base end of the shuttle, and Fig. 7 as in the opposite direction. Fig. 8 is a cross section on the line 88 of Fig. 1. Fig. 9 is a detail perspective view of the shuttle eye. Fig. 10 is a detail view of the blank from which the eye is formed.

In the drawing a indicates the shuttlebody having the usual bobbin recess a and a circular threading recess of, which opens at the upper end of the shuttle and has its bottom a approximately on a level with the shuttle spindle, said recess (1 being connected to the recess a by a narrow central slot or, the sides of which are beveled at their upper ends to guide the thread thereinto.

A transverse, circular hole, or passage of is formed in the body and extends from one side to the other thereof, said passage being bored in such a position that it intersects the front bottom portion of the threading recess of, so that the bottom a of said recess and the center line of the passage a are, approximately, in the same horizontal plane, and that the vertical plane, in which the center line of said passage is located, is tangent to the front side of said circular recess a A threading slot (1 is formed in the shuttle body, which lies in a plane which extends obliquely and forwardly from the threading recess a to the side of, and downwardly t0 the plane of'the bottom a at a forward inclination, as shown in Figs. 1, 3, 7 and 8, the inner end of the slot, as it opens into recess of, crossing, at its middle portion, the middle, longitudinal, vertical plane of the shuttle-body, so that the bottom of said slot a leads from the recess a at the opposite side of the middle line of the body from the outer end of said slot.

A horizontally disposed threading slot a leads rearwardly from the lower end of the slot 0. and intersects the passage a in the middle line thereof; that is, the plane of said slot (1 and the central line of said passage lie in approximately the same horizontal plane, or a plane parallel to the top and bottom of the shuttle.

A tubular, slotted eye 6 is provided, which is adapted to be formed of porcelain, or of sheet metal, as desired, and, in the manufacture thereof, is cut out of a blank 00, as

shown in Fig. 10, and then bent or rolled into cylindrical form. Said eye is adapted to be fitted into passage a and is provided with a holding lug Z) at its outer end, which is adapted to be tightly fitted ordriven into a corresponding slot or recess in the side of the shuttle-body to hold the eye securely in position. The threading slot of said eye comprises an inner portion 5 which extends from the inner end of the eye for a suitable distance and registers with the rear end of the slot a and an outer portion b which extends obliquely from the inner portion down to the lower side of the eye, at its outer end, forming a thread-retaining prong or projection 6 the end of which is held a short distance from the inner side of lug Z). The eye 6 is tightly fitted'in the passage a except between the slot b and the outer end of the passage, at which points the passage is recessed to provide a thread passage a from slot at to the lug b. The eye 7) extends inwardly to, or adjacent the middle of the shuttle-body, so that, as the thread is drawn therethrough from the bobbin, it will be drawn approximately in the center line of the shuttle. lhe inner end of the eye 7) also terminates at some distance from the point of intersection of the slot a with the bore a a thread-retaining projection a being provided on the shuttle-body therebetween which extends from the end of the eye across and beyond the middle plane of the shuttle body.

The end edge 5 of the eye 6, opposite the prong If, is flush with or projects beyond the adjacent surface of the side of the body,

over which the thread or filling y runs, as

it is drawn toward the rear end of the shuttle, as indicated in dotted lines in Fig. 4, protecting the wood from wear. From the upper portion of the eye, its end edge 1s inclined inwardly, so that the outer edge 11 of the prong Z2 is held within, or remote from the side of the body, the end of the prong Z2 being thus held below a straight line from the level of the bottom a of the threading recess, to the outer end of the chambered port-ion a of passage a as shown in Fig. 6. The bottom a of recess a and the bottom of passage a at its outer end, (1 are thereby enabled to act as thread supports which together act to prevent the unthreading of the shuttle, as will be hereinafter more fully explained. The middle portion of the front outer edge of the eye is sufliciently remote from the side of the body to cause the filling, when it is drawn forwardly said portion 6 is adapted to act to deflect from the eye, to be drawn into slot (H, as indicated in Fig. 4, and to permit the filling thus to be drawn readily into slot of, the sidesthereof are beveled at their rear ends, as shown in Figs. 2 and 7. The filling is thus prevented from wearing on the wood of the shuttle-body, as it is drawn toward the front, notwithstanding the fact that the end portion of the eye over which it is drawn is depressed with relation to the shuttlebody.

Then the shuttle is to be threaded, the filling is drawn by the hand forwardly and downwardly into the slot a. and back through the slots a and 6 into the inner end of the eye and down through the slot 6 about the prong 6*, into the outer end of the eye, the thread being deflected from a straight course as it is drawn against the outer side of the prong and past the end of 'the same. As the filling is always held by the support a well above the bottom of the eye 6 at its inner end, or approximately at the middle thereof, and is also supported by the thread-supporting end a, at the side of the shuttle beyond the eye, the filling is not only prevented from falling, or being drawn into the entrance to the slot 6 but,- as said entrance is remote from the side of the shuttle, and as the edge I) of the prong is inclined inwardly with relation to the side of the shuttle-body, and also with relation to the end edge of the opposite half of the eye, -so that the edge of the prong at its end is held at a materially greater distance from i the side of the shuttle body than the end of the end edge portion 6 adjacent the lug b,

the filling, as it is swung about in the eye, from the end of the prong, thereby preventing it from passing under the end of the prong, so that the shuttle will become unthreaded.

It will be observed that the filling is drawn through the shuttle eye with no more obstruction than with the ordinary shuttle which is threaded by suction, so that the thread breakage on this account is reduced to a minimum.

. By extending the inner end of the threading slot a across the middle plane of the shuttle, so as to form the projection a, between the inner edge of the tube Z) and the lower portion of the slot, about which the filling must be drawn in threading the shuttle, the liability of unthreading, due tothe threshing of the filling between the spindle and the entrance to the eye Z), is, in a large measure prevented, as the filling will, usually, in such instances, be caught on the projection a.

As the rear end of the slot a, at the upper side of the body, opens into the recess 64 adjacent the middle of the shuttle-body, and preferably at a short distance to the side thereof next the outer end of said slot, the filling may be readily drawn into the same, as it is drawn forward to thread the shuttle.

As the eye is cylindrical in form, it may be fitted into a round hole bored in the shuttle-body, and, as the outer end of the hole is recessed opposite the prong b the necessity of reducing the thickness of the prong, or of having it project into the eye, to permit the thread to pass into the eye, is also avoided. As the eye is of simple cylindrical form, aside from the projecting lug b, the difliculty of making the eye of porcelain is but slightly greater than that in making an ordinary porcelain shuttle eye.

What we claim as our invention, and desire to secure by Letters Patent of the United States is as follows:

1. In combination with a shuttle body having a threading recess, a passage leading thereto from the side of the body, a vertically disposed threading slot leading obliquely forward from said recess to the side of the body and a horizontally disposed threading slot extending rearwardly from the lower end of said slot and opening into said passage at the middle of its front side, a slotted, tubular eye fitted in said passage and having the inner portion of its slot in register with said horizontally disposed slot, and its outer portion extending to the lower side of the eye at its outer end, to provide a threadretaining prong, said passage being recessed at the outer side of the prong to permit the thread to pass about the same from said horizontally disposed slot, said prong extending inwardly at its outer edge from the upper to the lower side of the eye, to permit the rear portion of the outer end. of the eye to deflect the thread from the slot entrance, and said body having a support at the inner end of the eye arranged to hold the thread above the end of said prong when it rests on the bottom of said passage at its outer end, substantially as described.

2. In combination with a shuttle body having a threading recess, a passage leading thereto from the side of the body, a vertically disposed threading slot leading 0bliquely forward from said recess to the side of the body and a horizontally disposed threading slot extending rearwardly from the lower end of said slot and opening into said passage at the middle of its front side, a slotted, tubular eye fitted in said passage and having the inner portion of its slot in register with said horizontally disposed slot, and its outer portion extending to the lower side of the eye at its outer end to provide a thread-retaining prong, said passage being recessed at the outer side of the prong to permit the thread to pass about the same from said horizontally disposed slot, the rear portion of the outer end of the eye projecting to the surface of the adjacent portion of the body to provide a guiding surface for the thread as it is drawn rearwardly, and a deflecting surface therefor, as it is swung about in the eye, and the front portion thereof extending obliquely inward from top to bottom, so that the thread will be drawn into said horizontally disposed slot as it is drawn forwardly from the eye and the entrance to said eye slot will be held remote from the outer end of said passage, said eye terminating at its inner end at the middle of the shuttle-body, and a thread support adjacent said inner end coacting with the bottom of said passage at its outer end to support the thread above the outer end of said eye slot, substantially as described.

3. In combination with a shuttle body having a threading recess, a passage leading thereto from the side of the body, and a threading-slot opening into said passage, a slotted tubular eye fitted into said passage and terminating at its inner end at the middle of the body, said eye having its slot connected to said threading slot and terminating at its outer end at the under side of the eye, and said body having a threadsupport at the inner end of the eye arranged to deliver the thread thereto above the bottom thereof, the rear portion of the outer end of the eye projecting adjacent the surface of the body and the front portion thereof extending inward from top to bottom, so that the outer end of the eye-slot is remote from the outer end of said passage, and the thread will be deflected therefrom by the rear portion of the eye and be supported thereabove by the co-action of the bottom of the passage beyond the eye and thread-support, substantially as described.

In testimony whereof, we have signed our names to this specification, in the presence of two subscribing witnesses.

DAVID BROWN. HENRY L. BONNEY.

\Vitnesses L. H. HARRIMAN, JEREMIAH J. BUCKLEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, I). C. 

